@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

.body {
  background-color: #000;
  font-family: 'Roboto', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  margin: 0;

  button {
    background-color: var(--color);
    color: #fff;
    border: 1px var(--color) solid;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 20px 30px;
    overflow: hidden;
    margin: 10px 0;
    position: relative;
  }

  button:focus {
    outline: none;
  }

  button .circle {
    position: absolute;
    background-color: #fff;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    animation: scale 0.4s ease-out;
  }
}

@keyframes scale {
  to {
    transform: translate(-50%, -50%) scale(3);
    opacity: 0;
  }
}